Modulation of bilateral motor cortex excitability using intermittent theta burst transcranial magnetic stimulation / 中华物理医学与康复杂志

Objective:To explore the effect of intermittent theta-burst stimulation (iTBS) of the cerebellum on the excitability of the M1 zone in the bilateral motor cortex and the duration of any effect.Methods:Twenty healthy youths were randomly assigned to a left or a right cerebellum iTBS group, each of 10. The resting motor threshold and motor evoked potential (MEP) of the motor cortex were determined before giving 600 pulses of iTBS. Then MEP was measured at the 5th, 10th, 15th, 20th, 25th, 30th, 35th and 40th minute after the intervention ended. Any changes in MEP amplitude were also analyzed.Results:①The average MEP amplitude in the right motor cortex had increased significantly in the left cerebellum iTBS group from the 5th to the 15th minute. The increase lasted at least 10 minutes. Then it had returned to the baseline value at the 35th minute. ②The MEP amplitude in the left motor cortex decreased slightly after iTBS of the left cerebellum began, but there were no significant changes. ③The MEP amplitude in the left motor cortex had a tendency to decrease after iTBS was administered to the right cerebellum, but that change too was not significant. ④The MEP amplitude of the right motor cortex decreased significantly only for the first 30 minutes.Conclusions:iTBS of the cerebellum can increase the excitability of the contralateral motor cortex. The effect can last 25 minutes. It can also decrease the excitability of the ipsilateral motor cortex for 30 minutes.

Clinical investigation on skin changes after face lift based on extended subcutaneous and sub-SMAS undermining and multiple accurate plication of SMAS system / 中华整形外科杂志

Objective@#To explore the skin condition and histological changes after face lift based on extended subcutaneous and sub-SMAS undermining and multiple accurate plication of SMAS system.@*Methods@#Eighteen patients that underwent face lift were enrolled according to the inclusion and exclusion criterion. Objective, subjective and histological evaluations were performed to study the skin changes.@*Results@#Nine patients completed the study and skin condition improved significantly after face lift from the objective and subjective results. Histological evaluation revealed that epidermal thickness increased along with dermal collagen content. Collagen and elastic fibers were more condensed after surgery than before, suggesting the dermal regeneration after face lift.@*Conclusions@#Skin regeneration after face lift can help maintain the postoperative result. Extensive subcutaneous dissection along with removal of lax skin as much as possible are the key points of face lift.

Surgical treatment of eyelid divided nevus / 中华整形外科杂志

<p><b>OBJECTIVE</b>To investigate the surgical techniques and therapeutic effect of eyelid divided nevus.</p><p><b>METHODS</b>From January 2000 to January 2014, 27 cases with 27 eyelid divided nevi were treated by staged excision (2 cases), or full-thickness skin graft (20 cases) or frontal and facial expanded flaps (3 cases), or combined expanded flaps with skin grafts (2 cases) for large lesions. One case with skin graft underwent secondary treatment with expanded flap due to obvious scar.</p><p><b>RESULTS</b>Except for one case with residue lesion (0. 5 cm x 0. 5 cm), all the other cases underwent successful treatment with primary healing. All the patients were followed up for 3-48 months (average, 7. 4 months). Except for one case with secondary expanded flap treatment, all the other patients were satisfied with aesthetic and functional results. No occurrence happened.</p><p><b>CONCLUSIONS</b>Staged excision and full-thickness skin grafts are simple and effective method for eyelid divided nevus. For large lesions, expanded flap, or combined with skin graft should be considered.</p>

Application of the expanded distant skin flaps for the facial and cervical deformities / 中华整形外科杂志

<p><b>OBJECTIVE</b>To investigate the application of expanded distant skin flaps for the facial and cervical deformities.</p><p><b>METHODS</b>96 patients with facial and cervical deformities who underwent reconstructive surgery with expanded distant skin flaps were retrospectively reviewed and followed up.</p><p><b>RESULTS</b>Good results were achieved in 95 cases. Necrosis happened in the distal end of one flap. The patients were followed up for 1-8 years with good cosmetic results, such as well-matched flap texture and color.</p><p><b>CONCLUSION</b>The expanded distant skin flap is suitable and reliable for facial and cervical deformities.</p>